International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 02 | Feb -2017
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e-ISSN: 2395 -0056 p-ISSN: 2395-0072
REVIEW OF INFLUENCE OF DIFFERENT CUTTING ANGLES OF SINGLE POINT CUTTING TOOL ON TURNING OPERATION Professor. Suhas A. Rewatkar1, Nitesh A. Deshbhratar2, Aakash P. Kawale3,Amar M. Kardam4, Ashish D. Naik5
Assistace professor J D College of engineering Nagpur Maharashtra (India) 2Student J D College of engineering Nagpur Maharashtra (India) 3Student J D College of engineering Nagpur Maharashtra (India) 4Student J D College of engineering Nagpur Maharashtra (India) 5Student J D College of engineering Nagpur Maharashtra (India) -------------------------------------------------------------------***-----------------------------------------------------------------------1
Abstract-In order to improve surface finishing, reduce the production time and energy loss which is being wasted to re sharp the tools when they got blunt during machining, hence in accordance to this problem, in this research work the effect of different cutting angles on surface finishing have studied. The various angles using in our project while the other parameters like depth of cut, feed rate, cutting speed keeping constant. All the experiments will apply on mild steel with High Speed Steel HSS M7 (S400) grade material as cutting tool.
It is the angle between face of tool & plane parallel to base. Side rake angle : It is angle between face of tool & the shank of the tool. Front clearance angle / End relief angles – The angle between front surface of the tool & line normal to base of the tool is known as a front clearance angle It avoid rubbing of workpiece against tool. Side clearance /relief angle: This formed by the side surface of the tool with a plane normal to the base of the tool. It avoid rubbing between flank & workpiece when tool is fed longitudinally. Lip angle / cutting angle : It is the angle between face & flank. Longer lip angle stronger will be cutting edge. This angle is maximum when clearance & rake angle are minimum. Lager lip angle allows high depth of cut, high cutting speed, work on hard material. It increase tool life & transfer heat fastly. Side cutting edge angle : It is the angle between side cutting edge & side of too flank. The complementary angle of the side cutting edge is called “Approach angle”. With lager side cutting edge angle the chips produced will be thinner & wider which will distribute the cutting forces & heat produced more over cutting edge. On other hand greater the component for force tending to separate the work & tool. This causes chatter. End cutting edge angle – This is the angle between end cutting edge & line normal to tool shank. It satisfactory value is 80 to 150. Function – Provide clearance or relief to trailing end of cutting edge. It prevent rubbing or drag between machined surface & the trailing port of cutting edge. Noise radius – It provide long life & good surface finish sharp point on nose is highly stressed, & leaves grooves in the path of cut. Longer nose radius produce chatter. In this project we are doing research on the different cutting angles and nose radius of the single point cutting tool of lathe machines. For this project we are select the material of cutting tool is HSS M7 (S400)
Keywords- surface finishing, HSS M7 (S-400), cutting angles, turning operation ,tool signature.
I.
INTRODUCTION:
In industries even a single second is precious in production sector. Useful production time, money and energy is being wasted during the re sharpening of cutting tools. Other than casting, forming, shaping etc. machining is one of the major operations to be carried out in almost every mechanical industry. During this operation cutting tool cuts the metal sometimes need to regrind the tool become necessary to get good surface finish. In accordance to this, it may require extra time to regrind the tool achieve the desired requirements. On the other hand if we already choose such geometry of the cutting tool so that the chances of getting it blunt may be minimized. Hence in this account, it becomes necessary to find out the influence of cutting angles on surface finishing. The angles which may influence the surface finishing are:
SINGLE POINT CUTTING TOOL GEOMETRY: Back rack/ Front rake / Top rake angle:
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